Question

A developer is using the AWS software development kit (SDK) for Pythom (Boto3) and must specify the Region. Which method enables the developer specify the Region?

A. By setting the Region when they instantiate the service client
B. Users cannot specify the AWS Region in the service client
C. By setting the AWS_PROFILE environment variable
D. By associating a default Region with their profile in the credentials file in the .aws folder within their ""home"" folder

Answer 1

To specify the AWS Region using Boto3, a developer can set the region when instantiating the service client with the 'region_name' parameter or configure the region outside of the code using environment variables or the credentials file.

Step-by-step explanation:

In the context of using the AWS SDK for Python (Boto3), the method that enables a developer to specify the region for their AWS service client is by setting the Region when they instantiate the service client. This can be done by providing the 'region_name' parameter when creating the client. For example:

import boto3
# Instantiate the service client with a specific region
client = boto3.client('service_name', region_name='us-east-1')

Alternatively, the developer can use several other methods if they prefer not to specify the region directly in the code. Option C, setting the AWS_PROFILE environment variable, and option D, associating a default Region with their profile in the credentials file, are also valid ways to specify the AWS Region, though these are managed outside of the Boto3 SDK code.